Set a flag for IF statement

[The_Glitch]

I'm not sure I set the best title for this topic. I have a sound I would like to play when the camera node is below a distance from another node. It works fine once but then doesn't work again.
So lets say the event happens when the camera is <= 10.0f from a node in the if statement it fires once, then the node moves away, later comes below the distance again but the event doesn't happen again.

Code: Select all

 
while (device->run())
    if (device->isWindowActive())
    {
 
 
f32 distance = node->getAbsolutePosition().getDistanceFrom(camera->getAbsolutePosition());
 
 
 
if( distance <= 10.0f)
{
 
   // sound plays here
}
else if ( distance >10.0f )
{
      /// nothing here yet trying to perfect this
}
 
 
}